Apparatus and method for wireless power transmission and/or reception in electronic device

Patent metadata

Field	Value
Publication number	US-2018090975-A1
Application number	US-201715714701-A
Country	US
Kind code	A1
Filing date	Sep 25, 2017
Priority date	Sep 23, 2016
Publication date	Mar 29, 2018
Grant date	—

Abstract

Disclosed is an electronic device that includes a housing, a display, and a conductive line extending from a first end part to a second end part to include a plurality of turns that surround a space between a first surface and a second surface of the housing, and generating a magnetic field in the first direction or second direction or of a direction perpendicular to the first or second direction. As such, the electronic device may receive wireless power from a wireless charging device even if the electronic device is mounted on the wireless charging device in various directions.

First claim

What is claimed is:

1 . An electronic device comprising:
a housing including a first surface facing in a first direction, and a second surface facing in a second direction that is opposite to the first direction; a display disposed between the first surface and the second surface, and exposed through the first surface; and a conductive line extending from a first end part to a second end part and including a plurality of turns that surround a space between the first surface and the second surface, and generating a magnetic field in the first direction or the second direction, or generating the magnetic field in a direction perpendicular to the first direction or the second direction.

2 . The electronic device of claim 1 , wherein the conductive line comprises a first conductive line surrounding the space, and wound in a coil form centering on an axis of the first direction, and generating the magnetic field in the first direction or second direction.

3 . The electronic device of claim 1 , wherein the conductive line comprises a second conductive line disposed in at least a part of a portion surrounding the space, and wound in a coil form centering on an axis of the direction perpendicular to the first direction, and generating a magnetic field in the direction perpendicular to the first direction.

4 . The electronic device of claim 3 , further comprising:
a bezel surrounding the space; and a pair of extension parts combined to opposing sides of the bezel, and used for wearing on the wrist, wherein the second conductive line is disposed in a direction perpendicular to a direction between the pair of extension parts.

5 . The electronic device of claim 1 , further comprising:
at least one conductive plate surrounded by the plurality of turns of the conductive line, and disposed substantially in parallel with the first surface or second surface.

6 . The electronic device of claim 5 ,
wherein the plurality of turns of the conductive line are disposed in a circular ring form along the space between the first surface and second surface, and wherein the at least one conductive plate is a circular plate and is disposed inside the circular ring form.

7 . The electronic device of claim 1 , further comprising a flexible film in which the conductive line is disposed.

8 . The electronic device of claim 1 , further comprising a circuit electrically connected to the first end part and second end part of the conductive line, and wirelessly receiving or transmitting power through the conductive line.

9 . The electronic device of claim 8 , wherein the circuit comprises at least one circuit among a wireless power transmission and/or reception circuit of a magnetic induction scheme and a wireless power transmission and/or reception circuit of a magnetic resonance scheme.

10 . An electronic device comprising:
a housing including a first surface facing in a first direction, and a second surface facing in a second direction that is opposite to the first direction; a display disposed between the first surface and the second surface, and exposed through the first surface; and a flexible film of a ring form and including a plurality of conductive lines, and surrounding a space between the first surface and second surface, wherein the conductive lines are electrically connected to one another, and form one conductive line that extends from a first end part to a second end part to include a plurality of turns, and wherein the one conductive line generates a magnetic field in the first direction or second direction or a magnetic field in a direction perpendicular to the first direction or the second direction.

11 . The electronic device of claim 10 , wherein the one conductive line comprises:
a first conductive line surrounding the space, and wound in a coil form centering on an axis of the first direction, and generating a magnetic field in the first direction or second direction; and a second conductive line disposed in at least a part of a portion surrounding the space, and wound in a coil form centering on an axis of a direction perpendicular to the first direction, and generating a magnetic field in the direction perpendicular to the first direction.

12 . The electronic device of claim 11 , wherein the housing includes a bezel surrounding the space, at least one portion of the bezel overlapping with the second conductive line and including non-conductive materials.

13 . The electronic device of claim 11 ,
wherein the flexible film comprises a first flexible film and a second flexible film which are separable from each other, and wherein the first flexible film comprises the first conductive line, and the second flexible film comprises the second conductive line.

14 . The electronic device of claim 10 ,
wherein the flexible film includes a first connector and a second connector which are electrically connected to the plurality of conductive lines and are disposed at opposite ends of the flexible film, respectively, and wherein, by connecting the first connector and the second connector, the flexible film is disposed in the electronic device with a ring form surrounding the space between the first surface and the second surface, and the one conductive line is formed.

15 . The electronic device of claim 14 , wherein the flexible film comprises:
a multi-layer on which the majority of conductive lines are disposed; and at least one via formed in the multi-layer, wherein the at least one conductive line is formed by the electrical connection between the first connector and second connector and the at least one via.

16 . The electronic device of claim 10 , further comprising:
at least one conductive plate surrounded by the flexible film, and disposed substantially in parallel with the first surface or second surface.

17 . The electronic device of claim 10 , further comprising a printed circuit board that comprises a circuit surrounded by the flexible film, is electrically connected to the first end part and second end of the one conductive line, and wirelessly receives or transmits power using the one conductive line.

18 . The electronic device of claim 10 , wherein the electronic device comprises a watch that is wearable on a user's wrist.

19 . A method for operating an electronic device, the method comprising:
receiving a request for a light receiving mode from an external electronic device; entering the light receiving mode; when an optical signal generated from the external electronic device is detected, transmitting a response signal to the detected optical signal to the external electronic device; releasing the light receiving mode when a request for a wireless power reception mode according to the response signal is received from the external electronic device; and entering the wireless power reception mode and receiving wireless power from the external electronic device.

20 . The method of claim 19 , further comprising:
displaying a wireless power reception state from the external electronic device through a display of the electronic device.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Hee Dong
• Lee Ji-Woo

Classifications

• H02J50/005

  Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices · CPC title

• H02J50/23

  characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas · CPC title

• G04G19/10

  Arrangements for supplying back-up power · CPC title

• H01Q7/00

  Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

• H02J50/10

  using inductive coupling · CPC title